My two favourite CMSes and my two favourite web servers. Here are four config files for the same website. Let's assume we have a user devin with two directories in his public_html folder:
/home/devin/public_html/drupal /home/devin/public_html/wordpress
And then has already created the following logs folders (nginx and Apache have a habit of crashing when you try to specify a non-existent logging directory):